Fix explanation of serialize default behaviour.

I didn't understand the previous wording about pulling the dynamic segment. I found the explanation in http://emberjs.com/guides/routing/defining-your-routes/ much clearer and so edited this to be similar.
Update naming-conventions.md
wrapping long line
added in the deprecationMessage and styled
Don't use outdated methods

This fixes #1362.
Merge pull request #1512 from perlun/patch-9

Don't use outdated methods
Use Ember.Handlebars in helpers guide

This is pretty nit picky, but if JSHint is configured out of the box with your build tools to accept Ember as a global, this save you from having JShint throw "Handlebars in undefined" errors if you copy the example directly from the guide.
Merge pull request #1515 from southpolesteve/patch-1

Use Ember.Handlebars in helpers guide
Update deleting-todos.md

added a ","
Add jobs.emberjs.com callout.
Update /builds fixtures for 1.6.0-beta.4.
fix javascript syntax for action bubbling example
Merge pull request #1520 from bantic/patch-1

fix javascript syntax for action bubbling example
Merge pull request #1519 from rjackson/add-ember-jobs-callout

Add jobs.emberjs.com callout.
Update redirection.md

posts[0] doesn't work with ember data
Merge pull request #1521 from edance/master

Update redirection.md
Update api.yml
Merge pull request #1522 from edance/master

Update api.yml
Improve bindings guide to use relative bindings
Merge pull request #1212 from alexspeller/improve-bindings-guide

Improve bindings guide to use relative bindings